Drivers traveling at night through the Interstate 70 mountain corridor can expect delays while crews install a fixed fire-suppression system in the Eisenhower-Johnson tunnels for 20 nights starting Monday, providing tunnel operators equipment to put out a fire in two minutes.

There could be a delay clearing snow off a busy stretch of Interstate 70 in the high country from Idaho Springs to the Eisenhower Tunnel because plow drivers for that vital stretch of road don’t have a home.